Method and apparatus for assessing motion correction

• US 8,761,467 B2
• Filed: 10/04/2010
• Issued: 06/24/2014
• Est. Priority Date: 10/04/2010
• Status: Active Grant

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Wollenweber, Scott David
• Primary Examiner(s): Drennan, Barry
• Assistant Examiner(s): Mistry, Oneal R
• Application Number:
  US12/897,512
• Publication Number:
  US 20120082350A1
• Time in Patent Office: 1,359 Days
• Field of Search: None
• US Class Current: 382/128
• CPC Class Codes: A61B 6/032 Transmission computed tomography [CT]
• CPC Class Codes: A61B 6/037 Emission tomography
• CPC Class Codes: A61B 6/463 characterised by displaying multiple images or images and diagnostic data on one display
• CPC Class Codes: A61B 6/469 for selecting a region of interest [ROI]
• CPC Class Codes: A61B 6/488 involving pre-scan acquisition
• CPC Class Codes: A61B 6/5235 combining images from the same or different ionising radiation imaging techniques, e.g. PET and CT
• CPC Class Codes: A61B 6/527 using data from a motion artifact sensor
• CPC Class Codes: G06T 2207/10016 Video; Image sequence
• CPC Class Codes: G06T 2207/10072 Tomographic images
• CPC Class Codes: G06T 2207/10132 Ultrasound image
• CPC Class Codes: G06T 2207/30168 Image quality inspection
• CPC Class Codes: G06T 7/0002 Inspection of images, e.g. flaw detection

Abstract

A method for evaluating the effectiveness of a motion correction procedure includes acquiring an imaging dataset of an object using an imaging system, identifying a motion affected portion of the imaging dataset, motion correcting the identified portion to generate a motion corrected imaging dataset, and displaying both the identified portion and the motion corrected imaging dataset on a display device in a comparable manner or format. A system and computer readable medium for implementing the method are also described herein.

Claims

1. A method for evaluating the effectiveness of a motion correction procedure, said method comprising:

acquiring an imaging dataset of an object using an imaging system;

identifying a motion affected portion of the imaging dataset;

sorting the motion affected portion of the imaging dataset into a first plurality of motion affected images that are associated with a first bin and a second plurality of motion affected images that are associated with a second bin;

motion correcting the motion affected portion to generate a motion corrected imaging dataset comprising first and second pluralities of motion corrected images associated with the first and second bins, respectively; and

co-displaying first and second combinations, wherein the first combination comprises the first pluralities of motion affected and motion corrected images associated with the first bin, and the second combination comprises the second pluralities of motion corrected and motion affected images associated with the second bin.

2. The method of claim 1 wherein displaying further comprises concurrently displaying both the motion affected portion and the motion corrected imaging dataset on the display device.

3. The method of claim 1 further comprising concurrently displaying at least one of a surface rendering of a motion corrected image or a surface rendering of a non-motion corrected image with the motion corrected imaging dataset.

4. The method of claim 1 further comprising:

generating an averaged image using the motion affected portion of the imaging dataset; and

displaying the averaged image concurrently with the motion corrected imaging dataset.

5. The method of claim 1 further comprising:

generating an averaged image using the motion corrected imaging dataset; and

displaying the averaged image concurrently with the motion corrected imaging dataset.

6. The method of claim 1 further comprising

sorting the motion affected portion of the imaging dataset that is affected by motion into a plurality of bins;

selecting at least one of the plurality of bins as a reference bin; and

motion correcting the motion affected portion based on the reference bin to generate the motion corrected imaging dataset.

7. The method of claim 1 wherein the first and second bins correspond to image data sorted based on a Quiescent Period Gating algorithm.

8. The method of claim 1 further comprising:

arranging at least a portion of the motion affected portion and the motion corrected imaging dataset on the display device; and

saving the arrangement as a dashboard to enable an operator to recreate the arrangement.

9. The method of claim 8 further comprising activating the dashboard using a short-cut key to recreate the arrangement.

10. The method of claim 1 wherein the co-displaying involves displaying the first and second combination of the motion affected and the corresponding motion corrected imaging dataset in at least one of a side-by-side or top-to-bottom arrangement.

11. A medical imaging system comprising a first modality unit and a computer operationally coupled to the first modality unit, wherein the computer is programmed to:

acquire an imaging dataset of an object using the medical imaging system;

identify a motion affected portion of the imaging dataset;

sort the motion affected portion of the imaging dataset into a first plurality of motion affected images that are associated with a first bin and a second plurality of motion affected images that are associated with a second bin;

motion correct the motion affected portion to generate a motion corrected imaging dataset comprising first and second pluralities of motion corrected images associated with the first and second bins, respectively; and

co-display first and second combinations, wherein the first combination comprises the first pluralities of motion affected and motion corrected images associated with the first bin, and the second combination comprises the second pluralities of motion corrected and motion affected images associated with the second bin.

12. A medical imaging system in accordance with claim 11, wherein the computer is further programmed to concurrently display both the motion affected portion and the motion corrected imaging dataset on the display device.

13. A medical imaging system in accordance with claim 11, wherein the computer is further programmed to concurrently display at least one of a surface rendering of a motion corrected image or a surface rendering of a non-motion corrected image with the motion corrected imaging dataset.

14. A medical imaging system in accordance with claim 11, wherein the computer is further programmed to:

generate an averaged image using the motion affected portion of the imaging dataset that is affected by motion;

generate an averaged image using the motion corrected imaging dataset; and

display the averaged images concurrently with the motion corrected imaging dataset.

15. A medical imaging system in accordance with claim 11, wherein the computer is further programmed to:

sort the motion affected portion of the imaging dataset into a plurality of bins;

select at least one of the plurality of bins as a reference bin; and

motion correct the motion affected portion based on the reference bin to generate the motion corrected imaging dataset.

16. A medical imaging system in accordance with claim 11, wherein the computer is further programmed sort the image data corresponding to the first and second bins based a Quiescent Period Gating algorithm.

17. A medical imaging system in accordance with claim 11, wherein the computer is further programmed to:

receive an operator input that specifies an arrangement of at least a portion of the imaging dataset and the motion corrected imaging dataset on the display device;

save the arrangement as a dashboard to enable an operator to recreate the arrangement; and

activate the dashboard based on an input from a short-cut key to recreate the arrangement.

18. The medical imaging system of claim 11, wherein the computer is further programmed to display the first and second combination of the motion affected and the corresponding motion corrected imaging dataset in at least one of a side-by-side or top-to-bottom arrangement.

19. A non-transitory computer readable medium encoded with a program programmed to instruct a computer to:

acquire an imaging dataset of an object using the medical imaging system;

identify a motion affected portion of the imaging dataset;

sort the motion affected portion of the imaging dataset into a first plurality of motion affected images that are associated with a first bin and a second plurality of motion affected images that are associated with a second bin;

motion correct the motion affected portion to generate a motion corrected imaging dataset comprising first and second pluralities of motion corrected images associated with the first and second bins, respectively; and

co-display first and second combinations, wherein the first combination comprises the first pluralities of motion affected and motion corrected images associated with the first bin, and the second combination comprises the second pluralities of motion corrected and motion affected images associated with the second bin.

20. A nontransitory computer readable medium in accordance with claim 19, said computer readable medium is further programmed to instruct a computer to concurrently display both the motion affected portion, the motion corrected imaging dataset, and at least one of a surface rendering of a motion corrected image or a surface rendering of a non-motion corrected image on the display.

21. A nontransitory computer readable medium in accordance with claim 19, said computer readable medium is further programmed to instruct a computer to:

generate an averaged image using the motion affected portion of the imaging dataset that is affected by motion;

generate an averaged image using the motion corrected imaging dataset; and

display the averaged images concurrently with the motion corrected imaging dataset.

22. A nontransitory computer readable medium in accordance with claim 19, said computer readable medium is further programmed to instruct a computer to:

receive an operator input that specifies an arrangement of at least a portion of the imaging dataset and the motion corrected imaging dataset on the display device;

save the arrangement as a dashboard to enable an operator to recreate the arrangement; and

activate the dashboard based on an input from a short-cut key.

23. The nontransitory computer readable medium in accordance with claim 19, the computer readable medium is further programmed to instruct the computer to display the first and second combination of the motion affected and the corresponding motion corrected imaging dataset in at least one of a side-by-side or top-to-bottom arrangement.